A.C. VOLTAGE
D.C. VOLTAGE

FURNISHED ACCESSORIES

Preamplifier (SM93)

90A4360

Black Windscreen (WL93, SM93)

RK355WS*

Black Tie Clip Assembly (WL93, SM93)

RK354SB*

Dual Black Tie Clip Assembly (SM93)

RK307DB

Tan Windscreen (WL93T)

RK304T**

Tan Tie Clip Assembly (WL93T)

RK304T**

Black Sew-on Mounting Bracket (WL93, SM93)

65B1733

Tan Sew-on Mounting Bracket (WL93T)

65B1733A

Zippered Carrying Bag

26A13

*Replacements furnished in multiples of 4.

 

** RK304 includes 2 tie clips and 2 windscreens.

 

OPTIONAL ACCESSORIES

In-Line On/Off Switch

WA360

CERTIFICATION

Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN 55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments.

+10

dB 0

–10

20

 

2.2

F

 

 

V out

1

3

 

4

20 K

 

2

 

 

 

+5V

 

TEST CIRCUIT

FIGURE 3

SM93

50

100

200

500

1,000

2,000

5,000

10,000

20,000

Hz

TYPICAL FREQUENCY RESPONSE

FIGURE 4

98.8 mm

(3–29/32 IN.)

27mm

(1–1/16 IN.)

 

 

 

 

 

 

 

 

18.8 mm

 

 

 

 

 

0.23 IN.

 

(3/4 IN.)

(5.84 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.37IN

(9.40 mm)

0.24 IN.

(6.10 mm)

0.15IN.

(3.81 mm)

SM93 PREAMPLIFIER

SM93/WL93 MICROPHONE

OVERALL DIMENSIONS

FIGURE 5

 

 

C

 

 

 

 

 

D1

 

 

 

 

 

 

 

 

 

RED

 

 

C3

 

 

4.1V

86B429

 

 

 

 

 

 

P2

 

 

33X6.3

R4

 

R2

 

 

 

 

360K

 

33K

 

1

3

 

.1V

 

 

 

Q2

Q1

 

C7

 

 

86A350

 

 

 

 

 

86A348

 

4

 

1.9V

 

.6V

3.5V

 

B

.047,5%

.1V

 

2

 

 

 

 

 

 

 

R1

 

BLK

 

 

 

 

 

 

 

 

 

 

 

.05V

 

 

 

 

C6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D2

 

 

 

 

 

.047,5%

R5

C5

 

 

 

 

 

 

 

 

 

 

 

 

62K

150 pF

86A415

 

 

 

 

 

 

 

 

 

 

 

 

C8

 

 

R6

 

 

 

 

 

150 pF

 

 

 

 

 

 

 

 

 

24K

 

 

GRN

A

 

 

 

 

 

 

NOTES:

1. ALL RESISTORS 5%,1/8 WATT, UNLESS OTHERWISE SPECIFIED.

WHT BLK GRN YEL

2. ALL NON–POLAR CAPACITORS IN µF, TOLERANCE 10% AND 50 VOLTS OR MORE UNLESS OTHERWISE SPECIFIED. POLARIZED CAPACITORS SHOWN IN µF x VOLTS.

3.D.C. VOLTAGES MEASURED WITH 11 MEG INPUT VOLTMETER; A.C. VOLTAGE MEA- SURED WITH 1 MEG INPUT VOLTMETER. VALUES SHOWN ARE TYPICAL AND MAY VARY ± 20%.

4. THE FOLLOWING SYMBOLS DENOTE:

CIRCUIT BOARD GROUND

CASE GROUND

5.POWER SOURCE IS 21 VDC THROUGH TWO 1.691 KOHM, 1% RESISTORS FROM SUPPLY TO PINS 2 AND 3 OF CONNECTOR P1.

 

 

P1

 

2

1

 

 

3

 

L1

 

 

2

 

C1

 

 

150 pF

1

 

 

 

C2

L2

 

 

 

150 pF

3

 

BRN

 

 

.05V

 

 

T1

6. INPUT SIGNAL OF 0.1V AT 2 KHZ

 

APPLIED TO CIRCUIT BELOW:

 

 

18K

 

 

C

 

10x10

 

 

B

 

.1V

1.2K

 

 

 

 

A

SM93 PREAMPLIFIER CIRCUIT DIAGRAM

FIGURE 6

3

Page 3
Image 3
Shure WL-93, SM93 manual Furnished Accessories, Optional Accessories, Certification

SM93, WL-93 specifications

The Shure WL-93 and SM93 are premium lavalier microphones designed for professional audio applications, particularly in live performance, broadcasting, and theater. These microphones are renowned for their exceptional sound quality, durability, and versatility, making them a preferred choice for audio engineers and performers alike.

One of the standout features of the WL-93 and SM93 is their compact and discreet design. With a low-profile appearance, these microphones are easily concealable, allowing users to achieve a clean and unobtrusive look in various settings. Their miniaturized size does not compromise on performance, as both models deliver high-quality audio that captures the nuances of the human voice with clarity and precision.

The WL-93 and SM93 benefit from Shure's advanced microphone technologies. They utilize a carefully engineered electret condenser capsule that ensures a wide frequency response and exceptional transient response. This means that they can accurately reproduce vocals across a broad range of frequencies, from deep lows to sparkling highs, making them suitable for different types of speaking and singing voices.

Another significant characteristic of the WL-93 and SM93 is their omnidirectional polar pattern. This sensitivity pattern picks up sound evenly from all directions, allowing for greater flexibility in positioning and movement. This quality is particularly valuable in performance environments where the microphone might not always be perfectly aimed at the sound source.

Additionally, both models feature a low self-noise and a high maximum SPL (Sound Pressure Level), meaning they can handle loud sound sources without distortion. Their durability is also noteworthy, with a robust design that includes sweat-resistant construction for use in physically demanding environments.

The WL-93 and SM93 are compatible with a variety of wireless transmitters, further enhancing their usability in wireless applications. This flexibility makes them ideal for use in theater productions, public speaking engagements, or any scenario where mobility is essential.

In summary, the Shure WL-93 and SM93 lavalier microphones stand out due to their compact design, advanced microphone technologies, omnidirectional characteristics, and robust performance. They are trusted tools for professionals seeking reliable and high-fidelity sound reproduction in various applications.